Double snap fastener and installation of the same



Au .'19,.1941. HALL 2,252,925

DOUBLE SNAP FASTENER AND INSTALLATION OF THE SAME Filed Aug. 19. 1959 lave-flier:

dza-zwlhzlaaa a A 9 Patented Aug. 1 9, 1941 U ITED I STATES PATENT/A masses OFFICE,

V SNAP FASTINIB AND INSTALLA- TION OF sssra Charles L. mu, Detroit, Klein,

assignorto United-Carr Fastener Corporation, Cambrid Y Mass., a corporation of Massachusetts AppllcatlonAngust 19, 193 9, Serial No. 291,077 I 6 Claims. (01. 24-73) This invention relates to improvements in double snap fasteners and installations of the same. The invention is directed to a fastener device of improved construction over that illustener member in a way to seal the openings of the fastener to prevent the passage-of foreign matter therethrough. The sealing means in one form of my invention comprises a plug-shaped insert 7 of sponge rubber or the like disposed within the base and hollow boss of the fastener in a way to seal the openings. Another form of my invention includes a double fastener member having a coating of latex rubber or the like around its outer surfaces to cover the openings.

Other objects and uses of my invention will be apparent from inspection of the drawing and specification hereinbelow set forth.

Referring tothe drawing in which I have illustrated preferred embodiments of my invention;

Fig; 1 is a top plan view of my preferred fastener installation showing a hollow molding strip secured to a support through means of my first Fig. 4 is a top plan view of my first form of fastener member'per'se;

Fig. is a bottom plan view or my first form of fastener member per se;

Fig. 8 is a side elevation of my first form of I fastener member per se; and

Fig. 7 a a sectional view or a modified form of fastener member.

Referring to the drawing, I have shown a part to be supported such as amolding strip l secured to the outer surface I of a support I by means of my first form of fastener stud member I. The molding strip I is of the type now com- I monly used to ornament the exteriors of autoside I and inwardly extending flange portions I-I adjacent the opposite sides of an opening I running longitudinally of the strip. As a result of the relative thinness of, the metal of the curved side I, portions of-the strip adjacent opposite sides of the opening I yield outwardly, as shown in dotted lines in Fig. 2, when the flanges H are engaged by the base of the fastener member and then spring back to engage securely the fastener base with the flanges 6I in a manner to be described. The fastener member 4 provides a ,base portion I disposed outside the surface '2 of the support I for cooperative fastener engagement with the molding I and a contractible and expansible head I pressed from the base I for snap fastener-engagement'with the support I through an opening 10 thereof so as to secure the fastener member in assembly with the support.

Referring in detail to my first form of fastener member I, 1 have shown one made from a single piece of sheet metal and providing a hollow or cup-shaped basel at one end. The base I, which is preferably circular in form, has a supportengaging portion II at its lower side and an an,- nular circular wall it extending outwardly and upwardly from the support-engaging portion II and then inwardly to terminate adjacent an opening II. The curved construction of the wall It provides an annular shoulder II on the lower side of the base which is spaced from the outer v surface 2 of the supportwhen the fastener member is assembled with the support. The studportion I is in the form of a hollow boss which is pressed from the base I and extends from adjacent the support-engaging portion II. The stud portion provides 6 stud head II and neck II and a plurality of slots ll. extend from the outer end of the head II in my preferred form through the neck II and into the baseI so as to render the stud portion contractible and expansible for snap fastener engagement with the support I through the aperture II. 'A plug ll of fiexible material such as sponge rubber is moved into the base I and boss I through the opening II and positioned in a way to fill up the opening II and at the same time overlie the slots II for theirentire lengths. 'lhus the plug ll serves to effect a sealing which prevents the passage of foreign matter such as dust, wind and water from the exterior of the automobile through the fastener member to the interior.

Assembly of my improved fastener member with the support I is carried out through snapmobiles and preferably. provides a curved outer 5 ping the stud portion I through. the opening iI tending portion IQ of the wall l2 of the base. downward pressure is exerted upon the molding i, the sides of the strip move away from each other as a result of the natural flexibility of the strip enabling the flanges B-$ to be passed over the greatest diameter of the base portion, whereupon the sides of the strip spring back to normal position so as to position the flanges S-$ in final attached position behind the shoulder M. Thusthe parts of my installation are firmly secured together.

As a result of my invention I have provided a double snap fastener adapted to be secured to a support in a way topresent a fastener means such as the base 8 on one side of the support for fastener engagement with an apertured memher to be secured to the support. At the same time I have provided means in the form of a rubber insert 18 capable of sealing the openings of the fastener 'to prevent the pasage of foreign matter through the fastener.

Referring to the second form of my invention illustrated in Fig. 'l, I have shown a snap fastener which is identical to my preferred form illustrated in Figs. 1-6 but provides a supplemental sealing means in the form of a coating of liquid latex 2@ completely covering the exposed outer surfaces of the fastener member and the openings it and ii. The coating 20 overlies the openings of the fastener to completely seal the same without effecting either proper expansion and contraction of the stud portion 9 or fastener engagement of the base 8 of the molding strip. At-the same time the natural resiliency of the coating l9 cooperates with the walls of the opening it! of the support to seal the opening when the stud portion a is snapped therethrough substantially in the manner illustrated and described in connection with my above-mentioned co-pending application.

Although I have illustrated and described prefrom said base providing a split stud head and neck for fastener engagement with a support through an aperture thereof and a plug of flexible material normally disposed within said hollow boss to seal the openings thereof.

' 2. A fastener member comprising a cup-shaped base at one end, said base being open at its upper end, a hollow boss extending from the lower end 3. A- fastener member comprising ahollow base open at its upper end, said base having an annular wall terminating adjacent said 'open end, said wall having a curved surface providing an annular shoulder for snap fastener engagement with another part through an opening thereof, a hollow boss extendingfrom the lower end of said base providing a stud head and neck for fastener engagement with a support through an aperture thereof, said boss having at least one slot extending from said head into said base to permit contraction of said head, and a plug of flexible material disposed within said base and said boss andoverlying said slot to prevent the passage of foreign matter therethrough.

a. A double fastener member comprising a holportion for resilient fastener engagement with a member through an aperture thereof, and a stud head and neck extending from said base portion for snap fastener engagement with an apertured support, said stud member having at least one slot to permit contraction of said head, and a covering in'the nature of latex rubber overlying portions of the outer surfaces;

of said fastener and said slot.

5. A fastener member comprising a hollow base open at its upperend, said base having an annular wall terminating adjacent said. open end, said wall having a curved surface providing an annular shoulder for snap fastener engagement with another part through an opening thereof, a hollow boss extending fromthe lower end of said base providing a stud head and neck for fastener engagement-with a support through an aperture thereof, said boss having at least one I slot extending from said head into said base to permit contraction of said head, and a covering in the nature of latex rubber overlying portions of the outer surfaces of said fastener and said slot. 7 6. A fastener member comprising a hollow-base open at its upper end, said base having an annular wall terminating adjacent said open end, said wall having a curved surface providing an annular shoulder for snap fastener engagement with another part through an opening thereof, a hollow boss extending from the lower end of said base providing a stud head and neck for fastener engagement with asupport through an aperture thereof, said boss having at least one slot extending from said head into said base to permit contraction of said head, and a covering in the nature of latex rubber applied to the outer surfaces of said fastener and overlying the outer end of said base and said slot for the purpose described.

CHARLES L, HALL. 

